signer: improve error handling in update_legacy_bootloader()
BRANCH=None
BUG=chromium:590933
TEST=Ran sign_official_build.sh locally and booted the image on kvm
(using BIOS).
$ ./sign_official_build.sh base chromiumos_base_image.bin \
../../tests/devkeys chromiumos_base_image_signed.bin
Change-Id: I2e1aad6e2073dea8e92d6ee25ac6972a5d555d71
Reviewed-on: https://chromium-review.googlesource.com/331661
Commit-Ready: Amey Deshpande <ameyd@google.com>
Tested-by: Amey Deshpande <ameyd@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed
